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// Copyright 2017 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.worker;
import static com.google.common.truth.Truth.assertThat;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link ErrorMessage}. */
@RunWith(JUnit4.class)
public class ErrorMessageTest {
String logText = "\n\nabcdefghijklmnopqrstuvwxyz\n\n";
@Test
public void testEmptyErrorMessage() {
ErrorMessage errorMessage = ErrorMessage.builder().build();
assertThat(errorMessage.toString()).isEqualTo("Unknown error");
}
@Test
public void testSimpleErrorMessage() {
ErrorMessage errorMessage = ErrorMessage.builder().message("Error").build();
assertThat(errorMessage.toString()).isEqualTo("Error");
}
@Test
public void testErrorMessageWithLogText() {
ErrorMessage errorMessage =
ErrorMessage.builder().message("Error with log text").logText(logText).build();
assertThat(errorMessage.toString())
.isEqualTo(
"Error with log text\n\n"
+ "---8<---8<--- Start of log ---8<---8<---\n"
+ "abcdefghijklmnopqrstuvwxyz\n"
+ "---8<---8<--- End of log ---8<---8<---");
}
@Test
public void testErrorMessageWithEmptyLogText() {
ErrorMessage errorMessage =
ErrorMessage.builder().message("Error with log text").logText("").build();
assertThat(errorMessage.toString())
.isEqualTo(
"Error with log text\n\n"
+ "---8<---8<--- Start of log ---8<---8<---\n"
+ "(empty)\n"
+ "---8<---8<--- End of log ---8<---8<---");
}
@Test
public void testErrorMessageWithTruncatedLogText() {
ErrorMessage errorMessage =
ErrorMessage.builder()
.message("Error with log text")
.logText(logText)
.logSizeLimit(13)
.build();
assertThat(errorMessage.toString())
.isEqualTo(
"Error with log text\n\n"
+ "---8<---8<--- Start of log snippet ---8<---8<---\n"
+ "[... truncated ...]\n"
+ "nopqrstuvwxyz\n"
+ "---8<---8<--- End of log snippet, 13 chars omitted ---8<---8<---");
}
@Test
public void testErrorMessageWithLogFile() throws Exception {
InMemoryFileSystem fs = new InMemoryFileSystem();
Path logFile = fs.getPath("/log.txt");
FileSystemUtils.writeContent(logFile, UTF_8, logText);
ErrorMessage errorMessage =
ErrorMessage.builder().message("Error with log file").logFile(logFile).build();
assertThat(errorMessage.toString())
.isEqualTo(
"Error with log file\n\n"
+ "---8<---8<--- Start of log, file at /log.txt ---8<---8<---\n"
+ "abcdefghijklmnopqrstuvwxyz\n"
+ "---8<---8<--- End of log ---8<---8<---");
}
@Test
public void testErrorMessageWithUnreadableLogFile() {
InMemoryFileSystem fs = new InMemoryFileSystem();
// This file does not exist.
Path logFile = fs.getPath("/nope.txt");
ErrorMessage errorMessage =
ErrorMessage.builder().message("Error with log file").logFile(logFile).build();
assertThat(errorMessage.toString())
.startsWith(
"Error with log file\n\n"
+ "---8<---8<--- Start of log, file at /nope.txt ---8<---8<---\n"
+ "ERROR: IOException while trying to read log file:\n"
+ "java.io.FileNotFoundException: /nope.txt (No such file or directory)\n");
assertThat(errorMessage.toString()).endsWith("---8<---8<--- End of log ---8<---8<---");
}
@Test
public void testErrorMessageWithException() {
ErrorMessage errorMessage =
ErrorMessage.builder()
.message("An exception occurred.")
.exception(new IllegalStateException("Hello World"))
.build();
assertThat(errorMessage.toString())
.startsWith(
"An exception occurred.\n\n"
+ "---8<---8<--- Exception details ---8<---8<---\n"
+ "java.lang.IllegalStateException: Hello World");
}
}
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